[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[LDM #YID-910454]: ldmd.conf, pqact.conf
- Subject: [LDM #YID-910454]: ldmd.conf, pqact.conf
- Date: Fri, 08 May 2009 13:46:26 -0600
Hi Kang,
re:
> I just want the radiosonde data of the OUN.
> I don't know how to edit the ldmd.conf file and
> pqact.conf file to get it. Please help me to get it.
Setting up the LDM to request a single product is possible, but
probably not the best way of approaching what you want.
What I recommend is doing following as the user running your LDM;
we assume below that this is the user 'ldm':
1) make sure your LDM is configured to receive the full IDS|DDPLUS
feed from some upstream site. Here is an example entry for your
~ldm/etc/ldmd.conf file:
request IDS|DDPLUS ".*" ustream_feed_host
You must replace 'upstream_feed_host' with the fully qualified
name of an upstream site that is running the LDM and has allowed
your machine to access the IDS|DDPLUS feed. It may be the
case that your site is already allowed to request data from the
OU Atmopheric Science Department's LDM machine(s). If this
is true, then upstream machine's name will be:
stokes.metr.ou.edu
You should contact this group to see if you have been allowed
to request data.
2) add the following entry to your ~ldm/etc/pqact.conf file:
IDS|DDPLUS (USUF44) (....) (..)(....)
FILE -close
data/upperair/\1/\1_(\3:yyyy)(\3:mm)\3_\4.raob
Please note carefully:
1) adding the action above to one's ~ldm/etc/pqact.conf file will
result in the creation of output files if:
- your ~ldm/etc/ldmd.conf file has an entry that looks like:
exec "pqact"
- the ~ldm/data directory is writable by the user 'ldm'
2) certain white space in LDM pattern-action file actions MUST be
tabs, not spaces. In the example included above, the following
are tabs:
- between IDS|DDPLUS and (USUF44)
- before FILE
- between FILE and -close
- before data/upperair/...
3) anytime you modify an LDM pattern-action file, you should run
'ldmadmin pqactcheck' to verify that the modifications made
do not have gross syntax errors. If 'ldmadmin pqactcheck'
reports a syntax error, you need to re-edit ~ldm/etc/pqact.conf
and correct the error(s). The most common error that users
make is using spaces for whitespace when tabs are required.
4) after 'ldmadmin pqactcheck' runs without reporting errors, you
can make your editing change(s) take effect by running:
ldmadmin pqactHUP
5) this action will continue to create datafiles as new data is
received. It is your job to make sure that the files are
appropriately scoured off of disk. If they are not, you will
eventually run out of disk space.
Cheers,
Tom
--
****************************************************************************
Unidata User Support UCAR Unidata Program
(303) 497-8642 P.O. Box 3000
address@hidden Boulder, CO 80307
----------------------------------------------------------------------------
Unidata HomePage http://www.unidata.ucar.edu
****************************************************************************
Ticket Details
===================
Ticket ID: YID-910454
Department: Support IDD
Priority: Normal
Status: Closed